<template>

  <div class="app-container">
    添加讲师


    <el-form label-width="120px">

      <el-form-item label="讲师名称">

        <el-input v-model="teacher.name"/>

      </el-form-item>

      <el-form-item label="讲师排序">

        <el-input-number v-model="teacher.sort" controls-position="right"/>

      </el-form-item>

      <el-form-item label="讲师头衔">

        <el-select v-model="teacher.level" clearable placeholder="请选择">


          <el-option :value="1" label="高级讲师"/>

          <el-option :value="2" label="首席讲师"/>

        </el-select>

      </el-form-item>

      <el-form-item label="讲师资历">

        <el-input v-model="teacher.career"/>

      </el-form-item>

      <el-form-item label="讲师简介">

        <el-input v-model="teacher.intro" :rows="10" type="textarea"/>

      </el-form-item>
      <!-- 讲师头像：TODO -->
      <el-form-item label="讲师头像">
        <!-- 头衔缩略图 -->
        <pan-thumb :image="teacher.avatar"/>
        <!-- 文件上传按钮 -->
        <el-button type="primary" icon="el-icon-upload" @click="imagecropperShow=true">更换头像

        </el-button>
        <image-cropper
          v-show="imagecropperShow"
          :width="300"
          :height="300"
          :key="imagecropperKey"
          :url="BASE_API+'/eduoss/fileoss/upload'"
          field="file"
          @close="close"
          @crop-upload-success="cropSuccess"/>

      </el-form-item>
      <el-form-item>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="saveOrUpdate">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>

  import teacher from '@/api/teacher/teacher'
  import ImageCropper from '@/components/ImageCropper'
  import PanThumb from '@/components/PanThumb'

  export default {
    components: { ImageCropper, PanThumb },
    data() {

      return {
        teacher: {
          name: '',
          sort: 0,
          level: 1,
          career: '',
          intro: '',
          avatar: ''
        },
        BASE_API: process.env.BASE_API, // 接口API地址
        imagecropperShow: false, // 是否显示上传组件
        imagecropperKey: 0, // 上传组件id
        saveBtnDisabled: false // 保存按钮是否禁用,
      }

    },
    created() {
      this.init()
    },

    watch: {

      $route(to, from) {

        console.log('watch $route')

        this.init()

      }

    },

    methods: {
      // 上传成功后的回调函数
      cropSuccess(data) {
        console.log(data)
        this.imagecropperShow = false
        this.teacher.avatar = data.url
        // 上传成功后，重新打开上传组件时初始化组件，否则显示上一次的上传结果
        this.imagecropperKey = this.imagecropperKey + 1
      },
      // 关闭上传组件
      close() {
        this.imagecropperShow = false
        // 上传失败后，重新打开上传组件时初始化组件，否则显示上一次的上传结果
        this.imagecropperKey = this.imagecropperKey + 1
      },

      init() {
        console.log('created')
        if (this.$route.params && this.$route.params.id) {
          const id = this.$route.params.id
          this.getInfo(id)
        } else {
          this.teacher = {}
        }
      },
      // 更新
      updateData() {
        this.saveBtnDisabled = true
        teacher.updateTeacher(this.teacher).then(response => {
          return this.$message({
            type: 'success',
            message: '修改成功!'
          })
        }).then(resposne => {
          this.$router.push({ path: '/edu/teacher/list' })
        }).catch((response) => {
          // console.log(response)
          this.$message({
            type: 'error',
            message: '保存失败'
          })
        })
      },
// 根据id查询记录
      getInfo(id) {
        teacher.getById(id).then(response => {
          this.teacher = response.data.teacher
        }).catch((response) => {
          this.$message({
            type: 'error',
            message: '获取数据失败'
          })
        })
      },
      saveOrUpdate() {
        this.saveBtnDisabled = true
        if (!this.teacher.id) {
          this.saveData()
        } else {
          this.updateData()
        }
      },
      saveData() {
        teacher.save(this.teacher).then(response => {
          return this.$message({
            type: 'success',
            message: '保存成功!'
          })
        }).then(resposne => {
          this.$router.push({ path: '/edu/teacher/list' })
        }).catch((response) => {
          this.$message({
            type: 'error',
            message: '保存失败'
          })
        })
      }
    }
  }
</script>
</script>
